US prosecutors have charged the parents of a suspect in a deadly Michigan school shooting with involuntary manslaughter.
Authorities have issued a fugitive warrant for James and Jennifer Crumbley, who are accused of ignoring warning signs before the gun rampage.
They are facing four counts each.
Ethan Crumbley, 15, is accused of using his father's gun to shoot classmates in Oxford, about 35 miles north of Detroit, this week.
Fours students were killed and seven others injured in the shooting.
Crumbley has pleaded not guilty on multiple charges, including terrorism.
Authorities in Oakland County have told US media they are currently searching for the boy's parents after their lawyers were unable to reach them by phone.